Question

point: (2, 3) yes / no
3.
$2x + y = 8$
$x + y = 6$
point: (2, 4) yes / no
4.
$y = 3x - 2$
$y = x + 2$
point: (2, 4) yes / no

Explanation:

Step1: Check (2,4) for Q3 system

Substitute $x=2, y=4$ into $2x+y=8$:
$2(2)+4=4+4=8$, which matches.
Substitute $x=2, y=4$ into $x+y=6$:
$2+4=6$, which matches.

Step2: Check (2,4) for Q4 system

Substitute $x=2, y=4$ into $y=3x-2$:
$3(2)-2=6-2=4$, which matches.
Substitute $x=2, y=4$ into $y=x+2$:
$2+2=4$, which matches.

Answer:

1. YES
2. YES